Process



J. F, GCONNOR PROCESS OF MAKING STOP PLATES FOR DRAFT RIGGING,

APPLICATION FILED NOV. 16.1915.

' Patented June 3, 19191 W1 TNESSES:

UNITED STATES PATENT OFFICE.

JOHN F. OGONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WILLIAM H. MINER, OF CHAZY, NEW YORK.

PROGESS OF MAKING STOP-PLATES FOR DRAFT-RIGGING.

Specification of Letters Patent.

Patented June 3, 1919.

Application filed November 16, 1916. Serial No. 131,615.

To all whom it may concern:

Be it known'that I, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in'Processes of Making Stop-Plates for Draft-Rigging, of which the fOllOWiDg is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in process of inaking stop plates for draft riggings.

The object of this invention is to provide a novel and efficient process of forming pressed steel stop plates for railway car draft riggings.

In the drawing forming a part of this specification, Figur 1 illustrates the original blank from which the stop plate is formed. Figs. *2 and 3 are side and end elevational views of the blank as the same appears at the end of the first operation. Fig. 4 is a side elevational view of the completed plate. Fig. 5 is a horizontal sectional view taken substantially on the line 55 of Fig. 4. And Figs. 6 and 7 are vertical sectional views taken on the lines 66 and 77, respectively, of Fig. 4.

In carrying out my improved process, I first take a rectangular blank A of the required dimensions and thickness. In the first step of the process, the blank is placed between suitable dies which form upper and lower longitudinally extending grooves 10-10 throughout the entire length of the blank, and short end centrally located grooves 1111, the ends 12 of the blank being also slightly offset from the main portion 13 of the blank, as clearly indicated by the shading in Fig. 2 and the end elevational view shown in Fig. 3. For the next operation, the blank is then interposed between suitable dies which form a series of transversely extending grooves 14, 15, 16, 17 and 18 therein. The central bend 16 is made deeper than the end bends 14 and 18 so as to make the center post or stop 19 deeper than the main end stops 20120. The bends 15 and 17 ,which are located half way between the bends 14 and 16 and 16 and 18,

co ies of this patent may beobtained. for

respectively, are made somewhat shallower than the end bends 14 and 18, to thus provide the limiting stops 21-21 of lesser depth than any of the main stops. Either after the first step or simultaneously with or subsequent to the second step, the longitudinally extending grooves '1010 are subjectthe stops, nevertheless the same are located suiliciently near the upper and lower edges of the stop plate so as to leave large wearing and bearing surfaces on the stops at the central portions thereof.

Although I have herein illustrated and described what I now consider the preferred manner of carrying out the process, the

same is merely descriptive and I contems plate all changes, including changes in the sequence of the steps, that come within the scope of the claim appended hereto.

I claim:

The herein described process of making a stop plate for draft riggings which includes, taking a blank and providing the same with a plurality of. longitudinally extending strengthening grooves throughout the entire length of the blank; expanding said grooves laterally at predetermined spaced points therein to provide riveting areas; and providing the blank with a series of spaced transverse bends to thereby provide stop sllioulders extending transversely of the stop ate. p In witness that I claim the foregoing I have hereunto subscribed my name this 11th day of Nov. 1916.

JOHN F. OCONNOR.

five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

